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Zigmanuir [339]
3 years ago
9

13 The diagram shows nine identical squares inside a rectangle.

Mathematics
1 answer:
Andrews [41]3 years ago
4 0

Answer:

5...is the width of the rectangle .

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How can you use an algebraic expression on a coordinate plane?
nydimaria [60]
Putting it in the middle sorry if it isnt right i never was really good at these but i tried.

4 0
3 years ago
Which set of numbers may represent the lengths of the sides of a triangle?
Nataly [62]

Answer:

B. (5,12,13)

Step-by-step explanation:

The only answer with two side lengths that are greater than the largest side length.

3 0
2 years ago
we need to make a number code with 4 digits. how many codes have at least two equal digits? and how many codes have exactly 3 eq
Blizzard [7]

Answer:

First do the case in which none of the digits is 0.

There are 9 ways to choose the digit that repeats 3 times and 8 ways to pick the other, after this there are 4 ways to order the digits. So 9×8×4.

Now we look at the cases in which the digit 0 repeats 3 times. Clearly the 9 numbers are 1000,2000,3000,…,9000.

Lastly we look at the cases in which 0 appears once. There are 9 ways to pick the other digit and 3 ways to order.

So the final answer is 9×8×4+9+9×3.

6 0
3 years ago
A total of 729 students participate in a school pep rally event. If every 30 minutes, 2/3 of the students leave, after 2 hours,
trapecia [35]

There will be 9 students left at the prep rally after 2 hours.

After 30 minutes

  • Total Number of students = 729
  • 2/3 of 729 = 486
  • Number of students left = 729 - 486 = 243

After 1 hour:

  • 2/3 of 243 = 162
  • Number of students left = 243 - 162 = 81

After 1 hour 30 minutes :

  • 2/3 of 81 = 54
  • Number of students left = 81 - 54 = 27

After 2 hours :

  • 2/3 of 27 = 18
  • Number of students left = 27 - 18 = 9

Therefore, the Number of students left after 2 hours will be 9.

Learn more : brainly.com/question/18112348

5 0
3 years ago
Someone help
attashe74 [19]

Answer:

.

Step-by-step explanation:

6 0
3 years ago
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